TAB. LXXXIV. 



PLUMBUM phosphatum. 

 Phosphate of Lead, 



Class 3. Metals. Order l. Homogeneous. 

 Gen. 14. Lead. Spec. 3. Phosphate of Lead. 



Div. 1. Crystallized. 



Spec. Char. Combined with Phosphoric acid. 

 Syn. Phosphorated Lead ore. Kirw. v. 2. 207. 



Grun-bleyerz. Emmerl. v. 2. 394. 



Braun-bleierz. Ibid. 383. 



Green Lead ore. Syst. Min. Jameson, 



Plomb phosphatee. Ha'uy, v. 3. 491. 



The yellow phosphates of lead of Wanloch-head mines^ 

 Scotland, are found coating Galaena in the Bellan-grain 

 vein, from 20 to 30 fathoms below the surface, but gra- 

 dually disappear at greater depths. From this mine our 

 specimens came by favour of G. Laing, Esq. They are found 

 in other parts of Great Britain besides Scotland, as Wales, 

 Cornwall, Ireland, &c. The purest phosphates seem to be 

 of the brightest yellow, and the crystals are generally very 

 small, being mostly hexaedral columns and their modifica- 



